Top Circuits Page 136
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Resign a complex solution using few external components, resulting an low cost application that provide a high precision measurement. This Digital thermometer microcontroller project use watchdog timer function to measure temperature. The WDT on all....
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A Left and Right source of audio are first pre-emphasized (HPF) and then fed to adder circuits. The output of one adder is the sum of the two signals, or the L + R signal (the monaural signal), and the output of the other adder is the difference of the two....
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Assembly is very straight forward, just follow the PC board overlay. Make sure you get the integrated circuit and the electrolytic capacitors the correct way around. The electrolytic capacitors are polarized, they have a + or - marked on them and they must....
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Install the red LED at D2. Align the flat side of the LED with the PCB outline. Install a jumper wire at R4 and install a 220uF electrolytic cap at C8 with the negative side to ground. Connect pin2 of J4 to the AGC input on the 612 HF mixer...
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The ABS is help to make thestooping distance less and help tosteer while breaking it increase the traction of the wheel anddoesn`t lock while hard breaking. The basic design of a braking system has been around and in use in other applications for many years.....
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The TS-440S, like probably a number of other radios, does not mute the microphone while you are using the rear audio connector for digital modes. So, unless you unplug the microphone each time you want to use the digital modes, shack noises will get on your....
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A very simple direct conversion receiver based on the NE602 Gilbert Cell mixer and a LM386 audio amplifier. The circuit is based onthe famoussudden receiver design from the Rev George Dobbs G3RJV many years ago and looks something like this: My....
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Found some more photos of the cutter parts: This shows the conical inserts to the quick change nozzle to reduce contamination of the stream on the cut. The one....
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I bought a SF-AW210 405nm diode and was running it off my LM317 power supply. I have been running my harvested DVD 16x burner laser diode in this....
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No, wait.. the 15 KHz is the frequency that you use for drive the flyback transformer, is right, but the high voltage at the output is DC, cause....
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Here`s the Automatic Laser poweroff circuit schematic. This circuit provides a visible power indication. In this case, Ground is waiting on one side....
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For some time i wanted some way to measure laser power, without spending a fortune on a power meter. First off, it is not possible to build something....
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Hello all Well, i live in South Africa, and as I`m sure many of you know, we have quite a bit of crime going on. So I was looking around for some....
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I am about to post a How To on testing DDL`s circuit before adding the LD, I hope it is all pretty clear and with no errors. Those ....
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Hello all, I`m new to lasers, but am intrigued by them. I went to walmart and got myself a cheap red laser pointer / LED light combo key-chain. My....
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Hey everyone! This is my first tutorial, but I do have experience with other tutorial making! So I will be fine. As a side note, my camera is not....
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How would you like free boost driver designs?! Though I can`t control anyone`s actions, I would appreciate it if anyone wishing to sell this circuit....
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So, as I finally managed to find an empty projector (the one we love extracting Nichia LD`s out of) (also, thanks, Greg!), I tried to find a driver....
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Hi! I`m going to build stcs2 based driver for 445nm. I choosed it because it has low vdrop - I`m going to power it from 2x li-ion. I found schematic....
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Tons of LED Projects to spark your creativity. Light Emitting Diodes are simple to use and make your DIY electronic projects look great....
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Nikon infrared remote control with some special features interval shots, multiples shots, continuous shots....
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28 Pin Development board with built-in USB connection. Power and serial communications are provided by the FTDI USB RS232 converter chip. You don`t have to do anything! Connect the USB ....
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A fun package full of potential projects! Development board for 28 pin PIC microcontrollers with power supply circuit, crystal oscillator circuit, RS232 port, ICSP/ICD port, 16x2 alphanumeric Supertwist LCD ....
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Prototype board for 40 pin Atmel ATMega microcontrollers with power supply circuit, 8MHz crystal oscillator circuit, RS232 port, reset IC, status LED, and 10 pin STK ICSP port.FR-4, 1.5 ....
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Development board with high power relays, opto-coupled inputs, power supply circuit, crystal oscillator circuit, RS232 port, with ICSP and JTAG ports! JTAG 5x2 pin connector for in-circuit ....
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